package com.markhsiu.framework.netty;

import java.util.concurrent.atomic.AtomicInteger;

import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.util.ReferenceCountUtil;

/**
 * Handles a server-side channel.
 */
public class DiscardServerHandler extends ChannelInboundHandlerAdapter { // (1)


	private volatile static AtomicInteger COUNT = new AtomicInteger(0);
	
    @Override
    public void channelRead(ChannelHandlerContext ctx, Object msg) { // (2)
        // Discard the received data silently.
    	ByteBuf in = (ByteBuf) msg;
        try {
            while (in.isReadable()) { // (1)
            	COUNT.getAndIncrement();
                System.out.print((char) in.readByte());
                System.out.flush();
            }
            System.out.println(" COUNT :" + COUNT.get());
           
        } finally {
            ReferenceCountUtil.release(msg); // (2)
        }
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) { // (4)
        // Close the connection when an exception is raised.
        cause.printStackTrace();
        ctx.close();
         
    }
}